no.19 november 2012 - einaeina.ws/no19/eina_no19.pdf · 2014. 4. 28. · energy, plasma, and...

No.19 November 2012

OBYASHI CORPORATIONc

CONTENTS

PREFACE Organic Materials Electronics Needs Knowledge of Electrical Insulation Engineers ················· 1

OUTLINE OF TECHNICAL COMMITTEES IN IEEJ ··································· 2

Dielectrics and Electrical Insulation (DEI) Electrical Discharges (ED) Plasma Science and Technology (PST) Pulsed Electromagnetic Energy (PEE) Electro-Magnetic Compatibility (EMC) Light Application and Visual Science (LAV) Instrumentation and Measurement (IM) Metal and Ceramics (MC) History of Electrical Engineering (HEE) Electromagnetic Theory (EMT) High Voltage Engineering (HV) Electrical Wire and Cables (EWC)

RESEARCH ACTIVITIES AND TECHNICAL EXCHANGES IN ASIAN COUNTRIES

Conference Records ················································································································ 16 International Conference on Electrical Engineering (ICEE 2012) ············································ 16

International Conference on Properties and Applications of Dielectric Materials (ICPADM 2012) ··················································································· 18

International Conference on Condition Monitoring and Diagnosis (CMD 2012) ····················· 22

International Conferences to be held in Asia ···································································· 25 ISH 2013 (International Symposium on High Voltage Engineering)

ICEE 2013 (International Conference on Electrical Engineering)

Activities of Laboratories Dielectrics Laboratory at Indian Institute of Technology Ropar ················································ 26

China Corner Research Development of Nanodielectrics in China ·································································· 28

Korea Corner Road Map of HVDC Deployment in Korea ··············································································· 31

India Corner High Voltage Engineering Laboratory College of Engineering, Anna University ·················································································· 33

TECHNOLOGIES FOR TOMORROW

Development of Factory-Expanded Cold-Shrinkable Joint for 500kV XLPE Cable ··················· 37

TECHNOLOGIES ALERT

Development of 230kV Factory Joint for Submarine Cable ·························································· 38

MISCELLANEOUS Photos on Front and Rear Covers ······························································································· 39

Front Cover: Rogowski Coil Installed at TOKYO SKYTREE Rear Cover: Numerical Simulation of Partial Discharge (PD)-induced

Acoustic Wave Propagation Journals of IEEJ ······················································································································· 40 IEEJ Technical Reports ················································································································ 40 Application for Membership of IEEJ ··························································································· 41 Way for Purchasing Proceedings of IEEJ Technical Meetings and IEEJ Technical Reports ········ 41 Members of the EINA Committee in 2012 ···················································································· 42 Web Site for EINA Magazine ·································································································· 42

EINA No.19 (November 2012) 1

PREFACE

Organic Materials Electronics Needs Knowledge of Electrical Insulation Engineers

I have been involved with research and education regarding organic

materials electronics for over 30 years in a University, after I completed my Doctor’s study concerning the electrical properties of insulating films. About 30 years ago, this research field was fresh for Electronics and Electrical engineers, and it was merely a dream for researchers to realize organic molecular devices. However, the circumstances in this Organic Materials Electronics have changed drastically during the last 30 years, mainly due to the discovery and development of new functional materials, including conducting polymers, organic semiconductors, etc. The discovery of new functional materials has attracted chemists, physicists, electronics engineers, etc, and also attracted young researchers to this field. Consequently a variety of new ideas, methods and techniques to utilize new organic materials have been developed. Recent progress in this field is very rapid, and studies of Organic field effect transistors (OFETs), Organic Electroluminescent (OEL) devices, Organic solar cells, and so forth are very active all over the world. Organic Materials Electronics world is expected coming together with a very huge production market in near future. However the performance of these electronics devices is still not sufficient. I must say as that we are merely standing in front of so-called this new research field. This situation would be totally different from that of Electrical insulation and of High voltage engineering, where researchers have wealth knowledge of the research and technology in their field for the future technology. Researchers are still not aware of physics and engineering for Organic materials electronics. Electronics engineers prefer to think of things related to Organic Materials Electronics, on the basis of semiconductor device physics. However the actual device performance is totally different, mostly owing to the dielectric nature of materials used therein. Electrical Insulation Engineers are well aware of the physics and engineering in which so-called electric field makes a significant contribution. Ideas and knowledge from the insulation engineering field is definitely useful for Organic Materials Electronics. In the meantime, the EINA magazine have focused on research activities in the field of electrical insulation engineering and helped peoples who are working and studying in this field. However I believe that the EINA magazine will also give an impact to the research and education in the field of Organic Materials Electronics.

Professor Mitsumasa Iwamoto

Tokyo Institute of Technology Japan

Prof. Mitsumasa Iwamoto


OUTLINE OF TECHNICAL COMMITTEES IN IEEJ

Dielectrics and Electrical Insulation (DEI)

Chairperson: Masayuki Nagao (Toyohashi University of Technology) Secretaries: Yasuhiro Tanaka (Tokyo City University)

Yuichi Ashibe (Sumitomo Electric Co. Ltd.) Assistant Secretaries: Toshihiro Takahashi (CRIEPI) Takahiro Imai (Toshiba Co. Ltd.) The activities of the Technical Committee on

Dielectrics and Electrical Insulation (TC-DEI) have been covering mainly solid and composite dielectric materials and their related technologies. The important activity of TC-DEI is to hold the annual domestic Symposium on Electrical and Electronic Insulating Materials and Applications in Systems (SEEIMAS), formerly called Symposium on Electrical Insulating Materials (SEIM), and the International Symposium on Electrical Insulating Materials (ISEIM) being held in every 3 years.

Last year we held the 7th ISEIM in September in Kyoto followed by the Joint colloquium of CIGRE SC-A2 and D1. This year we held the 43rd SEEIMAS with the General Chair of Prof. M. Nagao on September 10-12, 2012, in Mishima city, Shizuoka, Japan with technically cosponsored by IEEE DEIS Japan chapter. Diagnosis of electrical insulation degradation, new materials and the improvement of their properties, functional materials, nano-composite materials, insulation systems under inverter surges, partial discharge and space charge measurement, outdoor insulations, thin dielectric films and other topics were discussed.

Next year we will hold the 44th SEEIMAS in Toyohashi city, Aichi, Japan in the autumn of 2013. We are expecting your participation.

Furthermore, the TC-DEI runs several Investigation Committees (IC's). The role of IC’s is to organize several technical meetings a year to provide opportunities for the experts to discuss the recent R&D activities on the selected important issues in our field and finally to publish the Technical Report. The investigation committees are categorized into following four research areas: Macro-view of DEI technology related > Present Status and Future Perspective of Innovative Electrical Insulation Diagnosis of Electric Power Apparatuses (09/2012-08/2015, Chairperson: M.

Ikeda (Japan Nuclear Energy Safety Organization)). New materials including nano-materials related > Controlling of Nano-Materials and Nano-Structure for Application to New Functional and High Performance Organic Devices (04/2011 - 03/2014, Chairperson: K. Kato (Niigata University)). > Research Frontier on Organic Electrical / Electronic and Dielectric / Conducting Materials in Asia (10/2010 - 09/2013, Chairperson: M. Iwamoto (Tokyo Institute of Technology)). > Advanced Polymer Nanocomposites and their Applications as Dielectrics and Electrical Insulation (04/2010 - 03/2013, Chairperson: T. Tanaka (Waseda University)). Ageing and diagnosis of electric and electronic equipment related > Degradation Diagnosis Technology based on Characteristics of Insulation Materials in Electric Power Apparatus (04/2007 - 03/2010, Chairperson: Y. Ehara (Tokyo City University)). The Technical Report was published and the succeeding committee is now under preparation. > Electrical Insulation Diagnosis of Inverter Fed Motor Coils (01/2013 - 12/2015, Chairperson: M. Nagata (University of Hyogo)). This committee is cosponsored by the TC-DEI and TC of Electrical Discharge. Basic dielectric and breakdown phenomena related > Standardization of Calibration and Development of Application on Space Charge Measurement using PEA Method (03/2009-02/2012, Chairperson: Y. Tanaka (Tokyo City University)). Technical report will be published soon. > Properties Evaluation and Improvement Technology of Polymeric Insulating Materials for Outdoor Use (04/2010 - 03/2013, Chairperson: H. Homma (CRIEPI)).


Electrical Discharges (ED)

Chairperson: F. Tochikubo (Tokyo Metropolitan University) Secretaries: A. Kumada (The University of Tokyo)

H. Kojima (Nagoya University) Assistant Secretaries: Y. Yamano (Saitama University)

N. Shimura (Toshiba Corporation)

The Technical Committee on Electrical Discharge (TC-ED) belongs to the Fundamentals and Materials Society (A-Society) of the IEE Japan. The purposes of the TC-ED are mainly in the wide promotion of the research activities concerning to a variety of electrical discharges in vacuum, gas, liquid and on surfaces of materials and their applications to high technologies.

Several investigation committees, which are the affiliates of the TC-ED, are established every year to survey the up-to-date research subjects. The activities of these committees usually continue for three years. The chairpersons shown in Table 1 currently run three investigation committees.

The TC-ED organizes about six domestic technical meetings on electrical discharges every year. In these meetings, about 200 full papers are presented in total from both academic and industrial sides by researchers, engineers, professors and students. The domestic technical meetings are sometimes co-organized by other Technical Committees such as High Voltage Engineering, Pulse Electromagnetic

Energy, Plasma, and Dielectric/Electrical Insulating Materials.

In order to promote the international activities in electrical discharges, “Japan-Korea Joint Symposium on Electrical Discharge and High Voltage Engineering” has been organized by the TC-EC. This year, the J-K symposium will be held jointly with the eighth International Workshop on High Voltage Engineering on November 16-17 in Kanazawa.

The TC-ED also contributes to the organization of a young researcher seminar every year in cooperation with the Institute of Engineers on Electrical Discharges in Japan to encourage the young researchers in the field of electrical discharges. About 40 young researchers and engineers participate in the seminar and discuss vigorously the topics related to electrical discharges for two days. The seminar in this year will be held on November 30 and December 1, 2012.

Plasma Science and Technology (PST)

Chairperson: Hiroshi Akatsuka (Tokyo Institute of Technology) Secretaries: Yasunori Ohtsu (Saga University)

Jaeho Kim (National Institute of Advanced Industrial Science and Technology)

Assistant Secretaries: Nozomi Takeuchi (Tokyo Institute of Technology) Naoki Shirai (Tokyo Metropolitan University)

The Technical Committee on Plasma Science and

Technology (TC-PST) was founded in April 1999. This committee has the basis on the plasma researcher’s society that had organized Technical meeting on plasma science and technology in IEE Japan several times every year since about 30 years

ago. The field of activity of this committee includes researches and investigations of various plasmas over wide ranges of their density, temperature, ionization degree, and applications such as nuclear fusion, plasma processing, and plasma chemistry.

The major activity of this committee is to succeed

Table 1 Investigation Committees in TE-ED Chairperson Research subjects and established time

K. Satoh (Muroran Institute of Technology)

Atomic and molecular collision cross section and fundamental parameters of discharges (established in April 2011)

T. Oda (The University of Tokyo)

Electrostatic discharges as electromagnetic interference source (established in April 2011)

K. Miyagi (Kanazawa Institute of Technology)

Electrical/chemical behavior and application technology in dielectric liquids (established in October 2012)


to organize several technical meetings on plasma science and technology every year. In 2012, three technical meetings were held; in May at Toyohashi University of Technology in Aichi, in August at Iwate University in Iwate, and in December at The University of Tokyo in Tokyo. In 2011, also three technical meetings were held. At each symposium, about 20–60 presentations are made. Presentations by young researchers in bachelor course and master course are strongly encouraged and appreciated. Some of the technical meetings are jointly organized with TC-PPT.

TC-PST currently runs four investigation committees as shown in Table 1. Here we introduce their activities. In the committee of atmospheric pressure plasma source for analysis of trace-order element, physics and chemistry of atmospheric pressure plasmas as well as their appropriate diagnostic methods and applications are being investigated. In addition, innovative technologies required for the various industrial applications are widely surveyed. In the committee of generation and

application of metal vapor plasmas with high density and high ionization degree, upon the research outputs of the advancement of metal sputtering plasma committee held in 2006–2008, investigations are made over their characteristics, overview and perspectives to activate related research activities in domestic institutes. In the committee of the standardization of experiment and simulation modeling in liquid interface plasma, upon the research outputs of the advancement of the plasma–water applications and their reacting processes committee held in 2008–2010, investigations are made over the characteristics on plasma–water interface, overview and perspectives to activate related research activities in domestic institutes. Finally, in the committee of the propulsion performance of electrical propulsive rocket engine and its internal plasma physic phenomena, the progress of the propulsion performance and the understanding of physical phenomena in plasma are investigated by researchers of electrical engineering or plasma engineering.

Pulsed Electromagnetic Energy (PEE)

Chairperson: Eiki Hotta (Tokyo Institute of Technology) Vice-Chairperson: Sunao Katsuki (Kumamoto University)

Secretary: Takashi Kikuchi (Nagaoka University of Technology) Assistant Secretary: Jun Hasegawa (Tokyo Institute of Technology)

The Technical Committee on Pulsed

Electromagnetic Energy (TC-PEE) was founded under the Fundamentals and Materials Society of the IEE Japan in June 1999. The activity of TC-PEE covers the collection and spread of information on pulsed power technology and its applications. Using pulsed power technology, very high power electromagnetic pulses can be produced, which are used for generation of high power lasers, high power electromagnetic waves, short wavelength light or high power particle beams. In addition, while huge machines with extremely high output power released in a single shot are developed at the start of the pulsed power technology, many smaller devices equipped with a lot of modulators, which are able to control the pulse waveform accurately by using high speed

semiconductor switch elements but possess only the ability of smaller output energy, are now being developed and used in series-parallel connection to attain higher average power in high repetition rate operation.

The application of this technology is now extended to the following broad fields; new material development, thin film synthesis or ion implantation in industrial field; sterilization or medical treatment in biological and medical field; toxic gas decomposition and ozone or radical production in environmental field; nuclear fusion or particle beam accelerator technologies in energy field; and moreover the destruction of rocks or concrete blocks in the civil engineering field and growth promotion of plant in the field of agriculture science. Thus the pulsed power

Table 1. Investigation Committees in TC-PST.Atmospheric Pressure Plasma Source for Analysis of Trace-Order Element

3 years from 2010, Chairperson: A. Okino (Tokyo Institute of Technology)

Generation and Application of Metal Vapor Plasmas with High Density and with High Ionization Degree

3 years from 2010, Chairperson: T. Ikehata (Ibaraki University)

Standardization of Experiment and Simulation Modeling in Liquid Interface Plasma

3 years from 2011, Chairperson: K. Yasuoka (Tokyo Institute of Technology)

Propulsion Performance of Electrical Propulsive Rocket Engine and Its Internal Plasma Physic Phenomena

3 years from 2011, Chairperson: K. Tahara (Osaka Institute of Technology)


technology becomes to be widely recognized as the basis of many technologies.

Recent activities of TC-PEE

The major activity of TC-PEE is to organize several technical meetings every year. In 2012, five technical meetings have been held or planned to be held, including the meetings in cooperation with the Technical Committees on Electrical Discharges or Plasma Science and Technology; in March at Kumamoto University in Kumamoto, in May at Yamagata University in Yamagata, in August at Iwate University in Morioka, in October at Saga University in Saga and in December at Tokyo University in Tokyo. A photograph of joint meeting held in last December at Tokyo Institute of Technology in Tokyo is shown in Fig. 1. Presentations by young researchers are strongly encouraged and selected young researchers who make excellent presentations are awarded.

Fig. 1 Joint technical meeting in cooperation with the Technical Committee on Plasma Science and Technology held in last December at Tokyo Institute of Technology in Yokohama.

Investigation Committee on Agricultural Applications Using Pulsed Power and Plasmas

In order to conduct an investigation on the present status of research and development in agricultural applications using pulsed power and plasmas, a committee chaired by Prof. Takaki was organized in January of this year. The topics include applications based on biological effects such as plant germination, inactivation of bacteria, electroporation, preservations of agricultural and marine products, gene injection, cell manipulation, and bioelectric science. Goals of the committee are to develop new fields for application of pulsed power technologies and to contribute for a food supply chain and a sustainable society.

Investigation Committee on the Status and Outlook of Pulsed Power Technology in Extremely High Power Level

In order to conduct an investigation on the present status of research and development in extremely high power level of pulsed power technology, a committee chaired by Prof. Horioka was also organized in January of this year. The topics include its applications to high energy density physics, laboratory astrophysics, high power accelerators, energetic radiation sources, material science at extreme state, radiation hydrodynamics, intense plasma shock waves, and fusion science. Goals of the committee are to overview the state of the art of the pulsed power technology, and to get an outlook on the future direction of the technology at more than GW power level. Reported by Eiki Hotta (Tokyo Institute of Technology) Koichi Takaki (Iwate University) Kazuhiko Horioka (Tokyo Institute of Technology)

Electro-Magnetic Compatibility (EMC)

Chairperson: T. Funaki (Osaka University) Secretaries: K. Kawamata (Hachinohe Institute of Technology) T. Ushio (Osaka University) Assistant Secretaries: Y. Hayashi (Tohoku University)

The Technical Committee on Electro-Magnetic Compatibility (EMC) has a vital role of researching following subjects; 1. Comprehensive understanding of electrical

power system and EMC issue, 2. Establish the interdisciplinary cooperation among

several groups and/or institutes related with EMC problem,

3. Investigations on new and high technology for EMC,

4. Advertisement to the public on EMC issue and

key technologies, 5. Introductory advertisement of international EMC

standard to the domestic EMC researchers. For these purposes the committee pays their

attention to the causes of electromagnetic interference phenomena, the situation of electromagnetic interferences occurrence, the novel measurement techniques and method for EMC, the protection technology and counter measurement for EMC and international and domestic EMC regulations. The committee has been organizing four dedicated


research sub-committees to realize the effective activity. 1. Investigation committee on technical trends in

evaluation of biological protection and compatibility with electromagnetic field.

2. Investigation committee on the analysis technology of electromagnetic filed including human body.

3. Investigation committee on the characteristics of noise accompanied with discharge.

4. Investigation committee on smart grid and EMC. These sub-committees basically work

independently, and each sub-committee meeting is held every two or three months regularly to announce their investigations and to share the obtained knowledge among sub-committee members. The practical period for the sub-committee activity is two or three years, and they are expected to publish their investigating results as a technical report of investigation committee or to have special conferences, which are related to their research theme. The investigation committee on EMC technologies for ElectroStaic Discharge, which finished the research work and dissolved in March 2011 presented their research work as the journal paper in the special issue of IEEJ transaction on fundamentals and materials in (May 2012).

The ad-hoc research committee for in vivo influence of electro magnetic field, which belongs to the head quarter of IEEJ, was dissolved on March 2012. Then, the function of responsibility and authority for research work of this ad-hoc committee was transferred to this technical committee on EMC.

Electromagnetic environment is the field, where electromagnetic phenomena exist. They are electromagnetic fields due to naturally-originated sources like lightning and earthquake, and artificial ones generated from electrical and electronic equipment as well as radiated from power lines or communication cables, and so force. EMC is the capability of electrical and electronic systems, equipment and devices to operate in the above-mentioned electromagnetic environment, without suffering or causing unacceptable degradation as a result of electromagnetic interference. In other words, a system is considered as electromagnetically compatible if it satisfies the following three criteria: 1. It does not cause interference with other systems; 2. It is not susceptible to emissions from other

systems; 3. It does not cause interference with itself.

The problems related to EMC had been discussed in the “Special Research Committee of EMC Engineering”, which was established in 1997 by IEICE and IEEJ joint venture. The high activity of the committee promoted the establishment of the technical committee on EMC in the Fundamentals and Materials Society of IEEJ. The committee was established to substitute the former committee in April

1999. Then Prof. T. Takuma of Kyoto University was elected as the first chair of the committee. After that, Prof. O. Fujiwara and Prof. Z-I. Kawasaki chaired the committee respectively from 2002 to Apr. 2005, and from May 2005 to Apr. 2008. Currently, Prof. T. Funaki succeeds the chair since May 2008. The committee holds some technical conferences. They were June, 24th(47th), November 2nd(48th) for 2011. March 12th(49th) , June 22th(50th) for 2012. 1. Investigation committee on technical trends in evaluation of biological protection and compatibility with electromagnetic field.

This committee, chaired by Assoc. Prof. A. Hirata of Nagoya Institute of Technology, was established in Apr. 2010. The mission of this committee is to survey the formulation of guidelines of human protection against to the electromagnetic field and to investigate the trend in the standardization of product safety. Moreover, this committee aims at publicity work in clarifying the scientific basis of these guidelines and standards with applying former research work nurtured by antecedent committees. The investigation subjects are summarized as followings. 1. Trend survey in the guideline related to the

human safety; 2. Trend survey in the standardization of product

safety; 3. Scientific study in the guidelines and

standardizations; 4. Find an issue for future work.

To this end, this committee recruited biological specialist as committee members in addition to the conventional electrical engineers. 2. Investigation committee on the analysis technology of electromagnetic field including human body.

This committee, chaired by Assoc. Prof. Y. Kamimura of Utsunomiya University, was established in Apr. 2010 to respond to the diversifying electromagnetic environment; such as popularization of wireless and radio wave sensitive appliances. The mission of this committee is to develop and establish the fast and precise calculation and evaluation method of electromagnetic field for internal and external of human body under complex electromagnetic environment. The committee is working on the following subjects. 1. Survey the analytical and quasi-analytical

calculation method of electromagnetic field inside and outside of human body;

2. Survey the numerical calculation method of electromagnetic field suitable for medium frequency band;

3. Study on the fast calculation method on the basis of surveyed calculation technology. This committee envisions providing adequate

calculation method for evaluating the exposure of


human body under the complex electromagnetic environment. 3. Investigation committee on the characteristics of noise accompanied with discharge.

This committee, chaired by Prof. K. Kawamata of Hachinohe Institute of Technology, was established in Apr. 2011. The mission of this committee is to measure and figure out the characteristics of voltage and current response associated with ESD from the view point of EMC, and to clarify the mechanism in emission of electromagnetic field by ESD with associating the characteristics of electromagnetic field and parameters for discharge. The investigation subjects are summarized as followings. 1. Systemize the interfering object by ESD; 2. Basics and mechanisms of ESD; 3. Dominant factors and parameters of current

waveform by ESD; 4. Measurement and prediction of transient

waveforms by ESD; 5. Characteristics of electromagnetic field y ESD; 6. Optimization of ESD immunity test; 7. EMC modeling and simulation of ESD.

This committee envisions to clarify the difficulties of noise immunity for electric and electronic

appliances, and to offer basic data to deal with. 4. Investigation committee on smart grid and EMC.

This committee, chaired by Emer. Prof. M. Tokuda in Tokyo City University, was established in Apr. 2011. The mission of this committee is to sort out the international and domestic EMC problem related to smart grid, and to clarify the difference in the research and development of smart grid technology stemming from the difference in the regulation of EMC over the world. The committee is working on the following subjects. 1. Overall conditions of research and development

of smart grid technology over the world; 2. Trend in the standardization of smart grid; 3. EMC regulations related to smart grid; 4. EMC problems in generation and transformation

of electricity; 5. EMC problems in transmission and distribution

of electricity; 6. EMC problems in communication network for

smart grid; 7. EMC problems in load and energy storage.

This committee envisions clarifying the EMC problems expected to occur in smart grid.

Light Application and Visual Science (LAV) Chairperson: Yoshiaki Tsunawaki (Osaka Sangyo University) Secretaries: Mitsuhiro Kusaba (Osaka Sangyo University)

Activities of the technical committee on light

application and visual science (TC-LAV) have been covering fields of visual/optical information processing and various kinds of application of optical engineering in the wavelength region from far-infrared (THz-wave) to extreme ultraviolet. In this report, two recent topics of light application including THz-wave/microwave are introduced.

The first topic is “Simple method for measuring optical fiber length using a gain-switched DFB laser as a pico second-time-gated amplifier”.

Because a gain-switched laser diode is insensitive to its optical feedback, the gain-switching technique is often used in disc systems, optical communication systems, and optical sensor systems, to avoid oscillation instabilities in laser diodes. However, output ASE (amplified spontaneous emission) noise from a gain-switched distributed feedback (DFB) laser was found to be increased remarkably only if picosecond output pulses were fed back to the laser at the precise moment that the laser generated gain-switched pulses. This means that a gain-switched DFB laser operates as a sensitive optical amplifier with a time-gate of tens of picoseconds. In this study, we demonstrated a simple method for measuring the optical length of an optical fiber using a gain-switched

DFB laser as a time-gated optical amplifier. Figure 1 shows the experimental setup. A fiber

pigtailed 1550 nm DFB laser was connected to Port 1 of a 50/50 fiber coupler. The two ports (Port 3, 4) of the other side of the fiber coupler were connected with a fiber to be measured (fiber optical length: L1). The rest port (Port 2) was connected to an amplified photodetector with 10 MHz bandwidth. The DFB laser was dc-biased at its threshold and sinusoidally gain-switched with 10 dBm microwave power around 1 GHz modulation frequency. Then, the noise level of the gain-switched DFB laser was measured as a function of the modulation frequency f of the DFB laser, as shown in Fig. 2. The noise peaks were found at the modulation frequencies, f1 and f2 respectively, where output pulses were fed back to the DFB laser just when the time-gate in the laser was fully-open. At those noise peak conditions, the following relation between the modulation frequencies f1, f2 and the optical length L0+L1 holds:

(1)

where c is the light speed, L0 is the sum of the optical lengths from the laser facet to Port 3 and from Port 4 to the laser facet.

1210 ff

cLL−

=+


50/50 coupler

Gain-switched DFB laser

Variable frequency modulation

10 MHz amplified photodetector

Pulse

Spectrum analyzerIsolator

Isolator

Optical fiber to be measured

Port 3

Port 4

Port 1

Port 2

Fig. 1 Experimental setup for measuring the optical length of an optical fiber.

-104

-102

-100

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-96

1015101010051000995990ASE

noi

se in

tens

ity (d

Bm

)

Modulation frequency（MHz）

f1f2

Fig. 2 Variation of the output ASE noise level as a function of the modulation frequency.

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-98

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1007.71007.61007.51007.4-100

-99

-98

-97

-96

997.0996.9996.8996.7Modulation frequency（MHz） Modulation frequency（MHz）

ASE

noi

se in

tens

ity (d

Bm

)

ASE

noi

se in

tens

ity (d

Bm

)

f1 f2

Fig. 3 Variations of the output ASE noise levels when the modulation frequency was varied around f1 and f2 in 0.01 MHz steps.

Figure 3 plots noise levels when the modulation frequency was varied around f1 and f2 in 0.01 MHz steps. The noise level was measured 30 times at respective modulation frequencies. As a result, the modulation frequencies f1 and f2 at the noise peaks were precisely estimated as 996.866±0.001 MHz and 1007.557±0.001 MHz, respectively. By substituting these values into Eq. (1), the optical length L0+L1 was obtained to be 28.060±0.005 mm. The optical length L0 was also estimated as 13.150 ± 0.002 m, employing the same technique as used in estimating the optical length L0+L1, after directly connecting Ports 3 and 4. By subtracting L0 from L0 + L1, the optical length of the fiber under test was successfully estimated as 14.910 ± 0.007 m.

The second topic is “microwave computer tomography (CT) for breast cancer screening”.

CT method is under development for breast cancer diagnostics. This CT method utilizes high contrast in electrical properties between normal tissues and malignant tissues. High permittivity of malignant tissues causes microwave reflection and scattering in the breast. The electric property is available to sensitive detection of small malignant tissues from

normal tissue in breast. A main circuit of the microwave CT system is

similar to a heterodyne. This CT system has become available by recent progress in mobile communications with effective and low-cost microwave Integrated Circuits (ICs). The system development cost can be reduced by using low-cost frequency converter and quadrature. An illumination source outputs continuous microwave at the frequency of 8 to 12 GHz. The illumination plane wave is transmitted from a corrugated horn antenna. A crystal oscillator is used as a reference signal source with the precise frequency of 110 MHz. The reference signal is compared with an intermediate frequency signal of the scattering wave from the dielectric target. A local oscillation signal is up converted by 110 MHz by using a single-side up converter. The scattering wave is received by an aperture antenna for the X-band frequency. The mixer diode outputs the intermediate frequency of 110 MHz. The intermediate frequency signal is converted to the in-phase and quadrature signals by the quadrature mixer. The amplitude of the receiving signal is measured by a power monitor. These signals calculate a complex amplitude of the scattering wave. These signals are recorded by PXI/Compact-PCI data acquisition system.

An analysis method of Microwave CT is under consideration in order to determine the complex permittivity profile in a semi-transparent weak scattering object. The complex permittivity profile of the object is directly calculated by solving a nonlinear complex matrix equation. The scattering wave can be described in the first Born approximation as

(2).

el(r) is total electric field, eli(r) is incident electric field, k0 is wave number, G(r,r') is Green’s function. The object and its surrounding area are separated by N pixels as shown in Fig. 4. TX is transmitter, RX is receiver. The contrast function is defined to be complex permittivity difference between the object and its surrounding area as as C(r) = ε(r) – εexp. The complex matrix equation is obtained by discretizing (2) and by solving it for the contrast function matrix as

(3).

els(r) is scattering electric field, GlS is Green’s function for the scattering wave, and I is a unit matrix. In the weak scattering approximation, the matrix El is equal to the incident electric field matrix Ieli. When the complex amplitude matrix of the measured microwave is substituted into Eq (3), the contrast function matrix C and the complex permittivity ε(r) can be obtained numerically. The CT method should be improved for the material with high permittivity and microwave absorption such as human body. This is an important research issue.

')',( )'()'()()( 20 rrrrrrr dCke Gee S lill ∫∫+=

　ilol

Sll

Slo kk eGCIIEeCEGC 1

212 )(,)( −− −==


As new proposals in the CT analysis, a basis set of the scattering wave patterns may be utilized to

estimate an initial dielectric profile in iterative tomographic reconstruction. And boundary surfaces between different dielectric medium may be well estimated by using a sub system of microwave pulse radar. These developments are future work. Authors Y. Tsunawaki (Osaka Sangyo University) K. Wada, S. Takeshita, Y. Hono, T. Matsuyama, and H. Horinaka, (Osaka Prefecture University.) S. Yamaguchi, M.Kishimoto, N. Higuchi, A. Kawabata and M. R. Asakawa (Kansai University)

Instrumentation and Measurement (IM) Chairperson: Kazuo Tanabe (CRIEPI)

Vice-Chairpersons: Yoshitaka Sakumoto (JEMIC), Akihito Otani (Anritsu) Secretaries: Terumitsu Shirai (JEMIC), Kazuaki Kodaira (JEMIC)

Three valuable and unique contents, which were

presented in the workshop of the technical committee, are roughly introduced in this manuscript. 1) Development of Plumb Laser system for Long Range (1)

In construction fields, slender threads are used as vertical lines to build structures, for example pillars and lifts. In recent years, laser beams are widely used instead of threads because of easy to use. But conventional plumb lasers with Gaussian beams can be hardly used as base lines for tall structures because Gaussian beams cannot transmit keeping small diameter covered long range. The diameter of a Gaussian beam expands about 5mm for 50m, but a diameter of a slender thread is 1-2 mm.

The novel plumb laser system with a Laguerre-Gaussian beam (LG beam) was developed and solved that problem. Cross-sections of LG beams are doughnut shape and holes do not light. This hole has a good point that it can keep a small diameter for long range. That is why the hole of LG beam can be used like a slender thread (Fig. 1).

This system has to not only generate a LG beam

but also keep beam vertical and be handy to use in construction fields. So, it has three components, (1) an optical system of Laguerre-Gaussian beam, (2) a vertical pendulum for the optical system, and (3) a damper control (Fig. 2). This LG beam is made from a laser diode, because the optical system has to be a small size to install the handy system. A laser diode is easy to downsize because of its small size, but difficult to control wavefront and keep a small hole of LG beam for long range. The optical system which consists of some pinholes and lenses is designed to overcome this problem. It achieves a small diameter of the hole about 1-2 mm for a range of 50 m (Fig. 3). As a result, this novel plumb laser system can be used for tall structure.

Fig. 2 Equipment of plumb laser with LG beam.

Optical system of Laguerre-Gaussian beam

LG beamcross section of LG beam

dumper control

10 m

2 mm

50 m

2 mm

Fig. 3 Laguerre-Gaussian beam. Gaussian beam Laguerre-Gaussian beam

cross section view

side view

hole

large small

Fig. 1 Conventional laser line and novel line by LG beam.

Fig. 4 CT analysis by the first Born approximation.

Verticalpendulum


～

Excitation coil

Detecting coil

Amp. B.P.F.(Band-pass filter)

Outputvoltage

Detection circuitExcitation circuit

Primary current line

Magneticcore

ACsource

Fig. 4 Schematic diagram of developed flux-gate current

sensor.

1.000

1.100

1.200

1.300

1.400

1.500

1.600

1.700

1.800

1.900

2.000

2005 2006 2007 2008 2009 2010 2011 2012

Dev

iatio

n fro

m n

omin

al v

alue

of 1

0 pF

[μF/

F]

Measurement date

Average:1.585 μF/F ±0.250 μF/F

0.2 ppm

Average

Fig. 8 Long-term monitoring results of capacitance (10-pF fused silica standard capacitor).

Fig. 7 Capacitance national standard in Japan.

0

50

100

150

200

250

300

0 250 500 750 1000

Primary current [mA]

Out

put_

2f [m

V]

Exp.Cal.

Error = 2.6 %Sensor output

linearity : ±0.7%F.S.

Fig. 6 Compared results between experimental and analytical

sensor output.

Fig. 5 Prototype of developed flux-gate current sensor.

2) Development of a flux-gate current sensor (2) High-precision direct current sensors are necessary

to control small current flowing through many kinds of systems, such as electric vehicle systems or solar power generation systems. Flux-gate magnetic sensor technology has a high potential for this application. The flux-gate current sensor determines the current value by evaluating the second harmonic of the detected voltage. The sensitivity of the sensor is proportional to the increase in the volume of the magnetic core. Because the more volume core is used, the more current needs to get enough magnetic flux to saturate the magnetic core, increasing in the volume of magnetic core has a disadvantage in the current consumption.

Fig. 4 shows a schematic diagram of developed flux-gate current sensor. In order to reduce the current consumption, a new magnetic core structure that consists of ring core and C-shaped core was applied. The shape of the sensor was optimized by means of the magnetic field simulation using the finite element method (FEM), and a prototype is shown in Fig. 5.

Fig. 6 shows the comparison result between experimental and analytical results of the sensor output characteristics. The difference between them is less than 3 %. This difference is due to the magnetic properties of the core. Our prototype shows that the sensor can be operated in low current consumption (7 mA), and has a valiant linearity output(±0.7 % Full Scale 300 mA).

3) Validation for Capacitance National Standard in Japan Based on Long-term Monitoring Results of Standard Capacitors (3)

To verify the Calibration and Measurement Capabilities (CMCs) of capacitance national standard in Japan (Fig. 7), long-term monitoring of a fused

silica standard capacitor and long-term monitoring of capacitance differences among a number of fused silica standard capacitors has been performing at National Metrology Institute of Japan (NMIJ). Analyzing the long-term monitoring results of capacitance differences in addition to the long-term monitoring results of the fused silica standard capacitor (Fig. 8) will enhance reliability of verification of the CMCs.

By using the results of these monitoring, the CMC of 10-pF capacitance national standard was validated promptly after the massive earthquake on March 11, 2011. Standard uncertainty of the validation conducted after the earthquake was estimated to be 0.144 μF/F.


WEB site and authors Activity of our committee is also described in our website (http://www2.iee.or.jp/~aim/). Written by Dr. Kazuo Tanabe (Chairman, CRIEPI, e-mail: [email protected]), E. Sano, Y. Watanabe and A. Domae.

References

(1) E. Sano, H. Nakajima, T. Nakajima, T. Kurihara, M. Higuchi and S. Ando : “Development of

Plumb Laser system for Long Range”, IEEJ, IM-11-029, pp. 19-22 (2011)

(2) Y. Watanabe, H. Nishizawa, H Nakajima and T Hirai : “Development of a flux-gate current sensor”, IEEJ, IM-11-027, pp. 7-12 (2011)

(3) A. Domae, N. Sakamoto and N. Kaneko : “Validation for capacitance national standard based on long-term monitoring results of standard capacitors”, IEEJ, IM-11-037, pp. 9-14 (2011)

Metal and Ceramics (MC)

Chairperson: Akio Kimura (Furukawa Electric Co., Ltd.) Secretary: Genzo Iwaki (Hitachi, Ltd.)

Assistant Secretary: Ataru Ichinose (Central Research Institute of Electric Power Industry)

Welcome to our Technical Committee on Metal

and Ceramics (TC-MC) in the Institute of Electrical Engineers of Japan (IEEJ). It is expected the TC-MC to promote the electrical materials and related technologies. Therefore, we have the pleasure to inform activities of the TC-MC and to communicate with each other.

Mission of TC-MC The metal and ceramic materials are indispensable

to electric and electronic fields and in front of advanced technologies all the time. In the twenty-first century, many advanced technologies need promising materials such as new materials or new functional materials for the diversification and renewable society. Therefore, the metal and ceramic materials are significant still more and will play an important role as a pioneer in the future.

As shown in Figure 1, the activities of the TC- MC have been covering mainly electric, electronic and optical materials, and their technologies. Namely their functions are extended such as superconductivity, normal conductivity, semiconductivity, mechanical strength, heat transfer, thermoelectric, photo-electricity, optical transmission, electro- chemical affinity, radio- activity, composites etc.

Furthermore, our activities have been covering data base on their processing technologies and their evaluations in order to fit any applications.

History of TC-MC The technical committee on the electrical

materials in the IEEJ, predecessor of the present the TC-MC has been already set up in 1979. With several reorganizations of the technical committees, the TC-MC under the Fundamental and Materials Society (called A-Society) has been established in 1999 with other eleven technical committees, Research and Education, Electromagnetic Theory, Plasma Science and Technology, Electromagnetic Compatibility, Pulsed Electromagnetic Energy, Electrical Discharges, Light Application and Visual Science, Insulation and Measurement, Dielectrics and Electrical Insulation, Magnetics, and History of Electrical Engineering.

Recent activities of TC-MC The activity of the TC-MC is based on the

Symposium in the National Convention of the IEEJ, the Study Meeting and the Investigation Committee under the TC-MC. The following introduces the resent Symposiums in the National Convention of the IEEJ and Study Meeting under the TC-MC as shown in Table 1 and Table 2, respectively and the third activities will be found in the next section.

Regularly, the TC-MC meetings are held four times a year. The main topics to be discussed in the regular meetings involve introduction and understand for advanced metal and ceramics, and development of our TC-MC itself. We previously provided new three technologies and related materials such the attractive carbon nano-tube, the fuel cell and the functional diamond except the superconductors.

Recent year, much attention has been paid on an investigation on advanced superconducting materials. The electrode materials for future batteries and fuel cells to be compatible with clean, green, renewable and sustainable society have been also focused.

Ceramics

SuperconductorNormal conductor

SemicoductorOptical material

Chemical f. materialComposites

Others

ApplicationTechnology

Metals

Processing andEvaluation Technology

Ceramics




Others




Others

ApplicationTechnologyApplicationTechnology

Metals




Figure 1 Activity scope of the TC-MC


Table 1 Symposiums in the National Convention of the IEEJ

Theme Date Site High magnetic field characteristics and indications for magnetic application of the High-Tc superconducting wires

2008.03.19 Fukuoka Institute of Technology

Development and problem of the high-efficiency solar cell 2009.03.19 Hokkaido University Metal and ceramic materials in energy strange systems 2010.03.19 Meiji University The 100th anniversary symposium for superconductivity discovery 2011.12.12 IEEJ meeting room

Table 2 Study Meetings in TC-MC

Theme Date Site Recent research progress in advanced superconducting materials 2010.10.31 University of Tokyo Recent research progress in advanced superconducting materials 2011.10.23 University of Tokyo Recent research progress in advanced superconducting materials 2012.12.16 University of Tokyo

Activities of investigation committee in TC-MC

At present, there is one investigating R&D committee under TC-MC as shown in Table 3, the name of which is “Structure and composition of advanced superconducting materials”. The chairperson and secretary are Prof. Jyunichi Shimoyama (University of Tokyo) and Dr. Hiraku Ogino (University of Tokyo), respectively. Regularly, there are four meetings a year.

The meetings discuss fabrication technologies and evaluations on electromagnetic, thermal and mechanical properties mainly for Nb3Al conductors, Bi-based oxide superconductors, MgB2 conductors, Y-based oxide superconductors and iron-based superconductors. Most expecting investigation results are fabrication technologies to obtain the high

performance and its possibility at a viewpoint of microstructures and chemical composition for various superconducting materials such as Nb3Al conductors, Bi-based oxide superconductors, MgB2 conductors, Y-based oxide superconductors and iron-based superconductors. And their cost performances as the practical superconductors and their applied technologies to such as persistent current mode-coils, cables, transformers, fault current limiters and so on. The committee has a plan of the study meeting related with the advanced superconducting materials on October 2010. This meeting will be held to exchange information between young re-searchers belonging to several communities. Therefore, the new style of the presentation is adopted, which is combination of a short presentation and a poster session.

Table 3 Investigation Committee under the TC-MC

Research Subject Chairperson (Affiliation) Period RemarksStructure, composition and characterization of advanced superconducting materials

Jyunichi Shimoyama (University of Tokyo)

2008.10-2011.09 Open

History of Electrical Engineering (HEE) Chairperson: Hiroshi Suzuki (Japan University of Economics) Secretaries: Chihiro Fukui (Hitachi, Ltd.)

Tatsuya Kimura (Toshiba Corporation) Assistant Secretaries: Takahiro Nishikawa (Mitsubishi Electric Corporation) Yoshio Takeoka (Toshiba Corporation)

The Technical Committee on History of

Electrical Engineering (HEE) belongs to the Fundamentals and Materials Society (FMS) of the IEE of Japan (IEEJ).

The main objective of HEE is to examine the direction in which electrical engineering should move in the years ahead by studying the past. Electrical engineering history constitutes the basis of technologies that we should develop. It is the starting

point from which we should approach the future. Currently, two investigation committees are

organized in the HEE and are running actively for survey of the subjects listed in Table 1. The aim of the investigation committee for nuclear generation in Japan is to study the development history of nuclear generation technology in Japan. The investigation committer for oral history is one of the continuing activities on oral history which will be explained later.


We would like to explain three topics of recent HEE activities next. The first is the “Web Database of Noteworthy Japanese Contributions to Electrical Engineering Technologies (DB-JET)”. This database archives outstanding research results made by researchers and disseminates them both within the Japanese and wider international academic community. Its objective is to widen an understanding of both process for advancing science and technology and of the importance of scientific research in supporting science and technology advancement. The DB-JET was developed through the close cooperation of National Institute of Informatics (NII) and five institutes including IEEJ. The first phase of the DB-JET Project ran from 2003 to 2008. It finished with the opening of the database in March 2008. The second phase began immediately afterwards. (http://dbnst.nii.ac.jp/)

The HEE has been conducting oral histories since the late 1990s. On the basis of this, seven electricity-related institutes including the IEEJ are now cooperating to promote oral histories. The term ‘oral history’ which was first used by Columbia University historian, is the recording of memories of people who have unique experiences and is obtained by interviews. To date, 55 people have been interviewed. The HEE created a document comprised of a biography, a summary by the interviewer, and the full text of an interview. This is done for each

interview. Then, the document is distributed to universities with science and technology departments and national colleges of technology all over Japan. We are now considering additional means of utilization.

In 2008, IEEJ organized the Commemoration Committee and has begun to reward the past important contributions to the electrical technology innovations, such as Persons, Materials, Locations, etc. The HEE nicknamed this commemoration “One Step on Electro-Technology -Back to the Future-”. As of 2012, thirty contributions were commemorated. Such kind of award enshrines the hidden stories of electric technology to the public.

Public information activities are running by HEE. One of these activities is the publication of a newsletter. Inaugurated in 1994, the newsletter reached its 58th issue this year. The 4 or 6 page publication features technological history-related articles, records of visits to museums and book reviews. Another important public information activity is the web site. This web site was opened in 2001 and it announces workshops, publishes the summaries of research papers presented at the meetings, and publicize the committee’s activities as we have mentioned in connection with the activities. The newsletters and the web site are in Japanese only but the web site in English will be soon. Please visit

http://www.iee.or.jp/fms/tech_a/ahee/index_e.html

Table 1 Investigation Committees in HEE

Research Subject Chair Person . History of nuclear generation in Japan . Oral history of electrical engineering in Japan

Tatsujiro Suzuki (Japan Atomic Energy Commission) Masazumi Yamamoto (Mitsubishi Electric)

Electromagnetic Theory (EMT) Chairperson: Michiko Kuroda (Tokyo University of Technology) Secretaries: Masahiro Tanaka (Gifu University) Yoshio Inasawa (Mitsubishi Electric Corp.)

Assistant Secretary: Ryosuke Ozaki (Nihon University)

The Technical Committee on Electromagnetic Theory (EMT) is established in order to maintain the qualified position of Japan in the field of the electromagnetic theory, by promoting the collaboration with foreigners and by bringing up the young Japanese colleagues who would contribute to the global activation of the electromagnetic society. The activities of the Committee have been covering fundamental theory of electromagnetics, analysis theory of electromagnetics, numerical solutions and modeling of electromagnetic fields, simulation techniques or electromagnetic fields, scattering and diffraction of electromagnetic waves, interaction of electromagnetic fields with media(including laser,

plasma, random media), nonlinear problems, inverse problem, inverse scattering, electromagnetic environment, electromagnetic effect on biological systems.

Major activity of our committee is to pursue to organize several technical meetings and international conferences. Currently, we have four technical meetings on electromagnetic theory every year. In 2011, technical meetings were held in Osaka University, Osaka (January), Chuo University, Tokyo (May), Kitami Institute of Technology, Hokkaido (July), and Amaharashi Onsen, Toyama( November).

As for international conference, we put


particular emphasis on AP-RASC, PIERS, URSI EMTS, ISAP, APMC, which are closely related with EMT. In 2006, PIERS2006 was held in Tokyo.

Later ISAP2007 was held in Niigata. In 2010, AP-RASC’10 was held in Toyama. In Asia, KJJC2012, the Korea-Japan EMT/EMC/BE Joint Conference was held in May, 2012, in Seoul, Korea. The fourth ICCE2012, the International Conference on Communications and Electronics, which is held every two years, was held in Hue, Vietnam, in August, 2012. These international conferences were produced many fruitful results for us.

URSI Commission B EMTS2013 (http:// ursi-emts2013.org/) will be held in International Conference Center Hiroshima, Hiroshima, Japan, in May 20-24, 2013, which is the 21st event and has been long-awaited by EMT Committee member. We hope the conference will be a great success.

High Voltage Engineering (HV)

Chairperson: M. Yashima (Central Research Institute of Electric Power Industry) Secretaries: Y. Hoshina (Toshiba Corp.), T. Utsumi (Hitachi Corp.)

Assistant Secretary: T. Miki (Central Research Institute of Electric Power Industry)

This technical committee (TC) belongs to Power & Energy (P&E) Society of the IEE of Japan, and supervises activity of investigation on technical subjects related to high voltage engineering. Four investigation committees listed in Table 1 are active in September 2012 and three technical reports listed in Table 2 will be published in the near future. The 8th International Workshop on High Voltage Engineering (IWHV2012) will be held in November 16-17 at Kanazawa City, Ishikawa Prefecture, following the 1st IWHV at Okinawa in 1999, 2nd at Tottori in 2000, 3rd at Fukuoka in 2003, 4th at Sapporo in 2004, 5th at Hamamatsu in 2007, 6th at Kyoto in 2008 and 7th at Kita-Kyusyu in 2010. The objective of this workshop is to provide a forum to discuss novel findings in field of high voltage engineering, mainly in Asian countries. The workshop will be organized every alternate fiscal year. Selected contributions of the IWHV with original findings will appear in a special issue of the Transactions of IEE of Japan.

In this year, there will be 11 sessions, where 40-60 papers will be presented orally for two days. All speakers will present their paper in English, following fruitful discussions.

Moreover, IWHV of this year will be joint conference with the 2012 Japan-Korea Joint Symposium on Electrical Discharge and High Voltage Engineering. We hope IWHV2012 will be valuable workshop for exchanging the information related to rapidly moving technology of high voltage engineering.

TC on High Voltage Engineering meeting meets four times a year. One of the meetings was associated with a technical visit to Central Research Institute of Electric Power Industry.

The members of the committee other than the chairperson of the investigation committees are from universities (4), a research institute (3), electric power utilities (4) and manufacturers (9).

Table 1. Investigation Committees in TC-HV

Research subjects Active period Chairperson Evaluation of lightning surge and EMC phenomena

affected by grounding systems 3 years from

2010 Hideki Motoyama (CRIEPI)

Technical Assignment on the Application of Suspension and Hollow Polymeric Insulators

3 years from 2011

Takaie Matsumoto (Shizuoka Univ.)

Transient Analysis Technologies in the Smartgrid Era (Cooperative Study Group)

2 years from 2011

Akihiro Ametani (Doshisha Univ.)

Lightning Protection Technologies for Wind Turbine generation facility considering Lightning Parameters

2 years from 2012

Shigeru Yokoyama (Shizuoka Univ.)

Fig.1 Poster session in ICCE2012, Hue, Vietnam


Table 2. Technical Reports will be published Research subjects Chairperson

Wind Turbine Grounding Systems for Lightning Protection Shozo Sekioka (Shonan Inst. of Tech.) Insulation coordination for non-effectively earthed and ultra-high voltage systems

Kunihiko Hidaka (The Univ. of Tokyo)

Lightning Protection for low-voltage power distribution systems Akira Asakawa (CRIEPI)

Electrical Wire and Cables (EWC) Chairperson: Yasuo Suzuoki ( Nagoya University ) Secretary: Kouji Miura ( EXSYM Corporation )

Assistant Secretary: Akitoshi Watanabe ( VISCAS Corporation ) Gaku Okamoto ( J-Power Systems Corporation )

Technical Committee on Electrical Wire and Cables (TC-EWC) is a committee organized to support the IEEJ Power and Energy Society, and is comprised of members from universities, power utilities, East Japan Railway Company, Japan Electric Cable Technology Center （ JECTEC ） and cable manufacturers. The technical committee organizes technical meetings to promote R&D activities in this field and provides an opportunity to present technical achievements. Two technical meetings were so far held in 2012, one of which was on degradation diagnosis and asset management of wires, cables and power apparatuses and was held as a joint meeting with TC-DEI. The technical committee also held a forum on the development of cable technology in Japan by inviting prominent retired engineers who led the history of Japanese cable technology from the 60s to the 80s. This was to provide young and active engineers in this field with an opportunity to directly learn the valuable real experiences of their seniors who greatly contributed to the development of cable technology. The technical committee plans to organize 3 more technical meetings and 2 forums in FY2012. Two of the planned technical meetings will be jointly

held with TC-DEI and the forums will be on trends in overseas cable technologies and overhead transmission lines, respectively.

In addition to organizing such technical meetings and forums, the technical committee supervises investigation committees dealing with subjects relating to electrical wire and cables. During the last several years, Investigation Committee for Technology of Wires and Associated Accessories for Overhead Transmission Lines, Investigation Committee for Accessories for 66kV and Higher Voltage XLPE Power Cable, Investigation Committee for Technology of XLPE Power Cable and Associated Accessories for Underground Distribution, Investigation Committee for Technical Trend of Environmental Tests for Insulation Materials of Distribution Wires and Cables, and Investigation Committee for Recent Technological Trends in Overseas Power Transmission Cables were organized. The technical report of the last committee will be published soon and Investigation Committee for Technical Trend of Recycling Technology for Wires and Power Cables is now in action.

Forum on the Development of Cable Technology in Japan (February 23, 2012, Tokyo)


RESEARCH ACTIVITIES AND TECHNICAL EXCHANGES IN ASIAN COUNTRIES

Conference Records

International Conference on Electrical Engineering (ICEE 2012)

International Conference on Electrical

Engineering (ICEE 2012) was successfully held at Ishikawa Ongakudo and ANA Crown plaza Hotel in Kanazawa, Japan from July 8 to 12, 2012.

The ICEE is hosted by the Institute of Electrical Engineers of Japan (IEEJ), the Chinese Society for Electrical Engineering (CSEE), the Hong Kong Institution of Engineers (HKIE) and the Korean Institute of Electrical Engineers (KIEE). ICEE aims to provide a forum for sharing knowledge, experience and creative ideas among international electrical engineers with focus on Asia, and to contribute to technical development in electrical engineering. It was the 18th conferences and the 5th time held in Japan, following Matsue in 1997, Kita-kyushu in 2000, Sapporo in 2004 and Okinawa in 2008.

With the theme “Renovation and Innovation by Electrical Engineering”, ICEE 2012 was well attended by 503 delegates from Japan (355), Korea (95), China (30), Thailand (9), Hong Kong (7) and some other overseas countries (7) (Table 1). Total 350 technical papers were submitted (Table 2). There were 5 Keynote speeches, 35 Oral sessions (166 papers), 7 Poster sessions (164 papers) and 3 Panel discussions.

In the opening ceremony on July 9, 2012, Prof. K. Hidaka of IEEJ made his greeting speech and Mr. F. Chen of CSEE, Ir Prof. K.K. Choy of HIKE, Prof. J.Y. Koo of KIEE and Mr. Y. Yamano of Kanazawa city gave their congratulations (Fig.1). After the opening ceremony, 4 keynote speeches were given by Dr. Makoto Toyoma, Dr. Ben Hua, Dr. F.C. Chan and Dr. Young-Hyun Moon. In the morning on July 10, 2012, Dr. Makoto Yoshikawa gave his keynote speech also (Table 3, Fig.2).

Table 1 Number of participants from each country. No Country No. of participants1 Japan 355 2 Korea 95 3 China 30 4 Thailand 9 5 Hong Kong 7 6 USA 2 7 Other countries 5 Total 503 (Above numbers include accompany persons.)

Table 2 Number of papers at each session

Sessions Number of papersOral session 166 Poster session 164 Keynote speech 5 Panel discussion 15 Total 350

Table 3 Presenters and titles of keynote speeches.No Name of Speaker Title of Presentation

1 M. Toyoma (The Federation of Electric Power Companies, Japan) Power system damage, recovery and challenges from Great East Japan Earthquake

2 B. Hua (South China University of Technology, China) Coordination of Distributed Energy System with Power Balancing & Reliability

3 F.C. Chan (The Hong Kong Institution of Engineers, Hong kong) Global Outlook of Electric Vehicles Development & Their Infrastructure

4 Y-H Moon (Yonsei University, Korea) Energy Crisis and Electric Power Industry

5 M. Yoshikawa (Japan Aerospace Exploration Agency, Japan) Missions to Asteroids : Challenges of Hayabusa and Hayabusa2

Fig.1 Prof. Hidaka gave greeting speech at opening ceremony.


In the oral and poster sessions, technical

presentation and discussions were made for some separated topics, such as Power Systems and Energy, Materials, Information & Control Systems, Electrical Machines, Power Electrics & Industry Applications, Sensor & Micro-machines and etc. (Fig.3 & 4). As the panel discussions, 3 important themes were prepared and active and meaningful discussions were done for two hours and more (Table 4).

Welcome reception, banquet and technical tours

were also arranged as the social events of ICEE 2012. Banquet was scheduled in the evening of July 10, 2012 at ANA Crown Plaza Kanazawa.

Dr. Masaki Sakuyama, conference chair of ICEE 2012, chairman of IEEJ gave his greeting at the opening of banquet (Fig.5).

Table 4 Titles of panel discussions No Title of panel discussion

1 Development and Standardization of Smart Grid and Smart Community 2 Battery as a Key Element of Smart Grid

3 Education and Human Resources Development in Electrical Engineering

All participants enjoyed some kinds of local foods

and historical Japanese music and attractions in Kanazawa. At the end of the banquet, Mr. Fen Chen of CSEE announced the next conference, ICEE 2013 to be held in Xiamen, China.

Finally, Prof. Yoshihiko Uesugi, the Chairman of Local Organizing Committee of ICEE 2012, passed the flag of ICEE to the representatives of the host of ICEE 2013, Mr. Fen Chen (Fig.6).

Prof. Yoshihiko Uesugi University of Kanazawa Chairman, Local Organizing Committee of ICEE 2012

Fig.5 Dr. Sakuyama gave his greeting speech at

the opening of banquet.

Fig.2 Dr. Toyoma at his keynote speech.

Fig.6 Prof. Uesugi (right) passed the flag

of ICEE to Mr. F. Chen (left).

Fig.3 A view of oral session.

Fig.4 A view of poster session.


International Conference on Properties and Applications of Dielectric Materials (ICPADM 2012)

The 10th ICPADM, International Conference on

Properties and Applications of Dielectric Materials was held in Bangalore, India on July 24-28, 2012. The Conference was hosted by CPRI, the Central Power Research Institute in Bangalore with the following Institute members providing a dominant role in the conference organization:

Mr. N. Murugesan,

Director General, CPRI & Conference Chair Dr. Seetharamu, Conference Co-chair, Dr. R.S. Shivakumara Aradhya,

Conference Co-chair & Technical Chair Mr B. Nageshwar Rao, Finance Chair Dr. N. Vasudev, Publication Chair Dr. M. Shekhar Kumar, Secretariat Chair Dr P. Sampath Kumaran, Member Dr. H.N. Nagamani, Member Ms. S. Ganga, Member Dr. C. Viswanatha, Member Mr. K. Mallikarjunappa, Member Dr. Seetharamu, the ICPADM 2012 Conference

Co-chair, reported that there were 299 abstracts submitted of which 225 were accepted. The number of papers accepted after review was 175 plus a further attrition of 15 papers occurred due to suspected plagiarism. The final number of papers presented was 137 out of which 66 were from abroad and 71 from India. In addition some papers were withdrawn due to Visa issues.

The total delegates for the conference were 156 of

which 44 were overseas delegates represented from China, Japan, UK, Australia, USA, Canada, Germany, Italy, Romania, Poland, Indonesia, and Switzerland. The pre-conference tutorial program was held on July 24, 2012 covering the topics on Nano-dielectrics, Outdoor insulation and Insulation aspects of Power

System Components with 80 participants. The ICPADM 2012 commenced with the inauguration by Mr. D.N. Narasimha Raju IAS, Principal Secretary, Energy Department, Government of Karnataka, India on July 24, 2012 and this is followed by the addresses of Dr. Harry Orton and Prof. Len Dissado. Mr. N. Murugesan presided over the function. This was followed by a welcome dinner. In the inaugural speech, Mr. Narasimha Raju stressed the need for improved infrastructure within the Indian Power Sector and further he remarked that the ICPADM 2012 is a very timely event for India for this reason.

The Technical program started with Ziyu Liu Memorial Lecture delivered by Dr. Keith Nelson, Professor Emeritus at the Rensselaer Polytechnic Institute, NY, USA followed by other plenary presentations by invited speakers. The lists of plenary speakers are given below.

Fig.3 Lectures delivered by Dr. Toshikatsu Tanaka

Fig.1 Inauguration – Lighting the Lamp

Fig.2 Dr. J. Kieth Nelson delivering the Ziyu Liu Memorial Lecture


Table 1 Lists of plenary speakers at ICPADM 2012

Speaker Affiliation Title of the plenary talk Ziyu Liu Memorial Lecture

Dr. J. Kieth Nelson Rensselaer Polytechnic Institute, NY, USA The Continuing Evolution of Nanodielectrics

Invited Lecture

Dr. Toshikatsu Tanaka Waseda University, Japan Partial discharges, treeing and tracking Dr. Greg Stone IRIS Power L.P., Canada Partial discharge measurement

Dr. Tatsuki Okamoto CRIEPI, Japan New methods of degradation estimation of insulation paper of power transformer windings based on the load history

Dr. L. Satish Indian Institute of Science, Bangalore Some Innovative Applications of Frequency Response Data of Transformer Windings

Dr. Len A. Dissado Leicester University, UK Space charge and its relationship with aging

Dr. Sivaji Chakravorti Jadhavpur University, India Charge modified field computation in high voltage

Mr. B. Gunasekaran CPRI, India CPRI experience in 1200 kV transmission line design

Dr. Rajeswari Sundararajan Purdue University, USA Impedance spectroscopy studies of bio dielectrics – cancer cells and tissues

Fig.7 Dr. Len A. Dissado at his lecture.

Fig.6 Dr. L. Satish at his lecture.

Fig.5 Dr. Tatsuki Okamoto at his lecture.

Fig.4 Lecture delivered by Dr. Greg Stone


The contributory papers presented in various

technical sessions were of high technical standard, although there was a mixture of papers. It was pleasing to note that there were a large number of student papers presented from Universities and by young engineers from Industries, which were well recognized and appreciated. Finally, ICPADM had 129 papers, 60 papers from abroad and 69 from India. Among the 60 papers presented from overseas countries, 41 papers were from China.

The Banquet Dinner organized on July 26, 2012 at the RMV Club Terrace Hall close to CPRI was an informal networking affair for the participants. Social events included an evening of light classical music / Veena recital, by the musical troupe “Sunadha Lahari”, plus Bangalore sightseeing tours were made available. Technical tours of the extensive CPRI facilities including the High Voltage Division, Short Circuit Laboratory, Dielectrics Cables & Capacitors Laboratory, Materials Technology Laboratories and Earthquake Vibration Research Centre were conducted upon request.

On the final day, a concluding session was held on

July 27, 2012 with panel discussions on “Future of

Dielectrics” chaired by Mr. N. Murugesan, Director General, CPRI and steered by Dr. Harry Orton, Canada. The panelists were Dr. Keith Nelson, USA, Dr. Tatsuki Okamoto and Dr. Yoshimichi Ohki, Japan, Dr. Toan Phung, Australia and Dr. Zheng Xioquan. Each panelist gave a five minute dissertation on their views of what holds for the future of dielectrics. Lively audience participation followed during a question and discussion session.

Fig.12 View of Poster Session.

Fig.10 Dr. Rajeswari Sundararajan at her lecture.

Fig.11 View of audience participation.

Fig.8 Dr. Sivaji Chakravorti at his lecture.

Fig.9 Mr. B. Gunasekaran at his lecture.


CPRI organized an R&D Expo of Indian industry

from July 24 – 26, 2012 coinciding with ICPADM 2012. This included exhibition by nine major industries of their latest products & interaction with R&D institutions, Academicians and Industry personnel.

The nine exhibitors were:

BHEL Electro Porcelain Division CPRI (Central Power Research Institute) Gharda Chemicals Ltd. Hindustan Vidyut Products Ltd. KVTEX Power Systems. Oblum Electric Industries PCI Ltd. Raychem and Vijai Electric Ltd

During the ICPADM 2012 conference the IAC met

to discuss the next ICPADM 2015 venue. All those present endorsed the decision to hold the next ICPADM 2015 at the UNSW, the University of New South Wales in Sydney, Australia.

Dr. Subramanyam Seetharamu Co-chair ICPADM 2012 CPRI, India Dr. Harry Orton, Chair Int. Advisory Committee of ICPADM 2012 Canada.

Fig.13 Closing Session – Panel Discussions.

Fig.14 Group photo of all participants of ICPADM 2012.


International Conference on Condition Monitoring and Diagnosis (CMD 2012)

2012 International Conference on Condition

Monitoring and Diagnosis (CMD 2012) has been held successfully in very famous place Bali, Indonesia on 23-27 September 2012. The venue of the conference was The Grand Bali Beach Hotel which is located at the beautiful Sanur Beach Bali. CMD 2012 was co-organized by School of Electrical Engineering and Informatics, Institut teknologi Bandung and Department of Electrical Engineering Udayana University, Bali, Indonesia and sponsored by IEEE DEIS. The previous conferences were held in Beijing (2008) and Tokyo (2010).

CMD 2012 was opened on September 24th by Prof.

Puti Farida, The Vice Rector of Institut Teknologi Bandung.

The Organizing committee received more than 400 abstracts and after rigorous review, finally 302 papers from 33 countries from 5 continents were accepted. The number of papers from each country is shown in table 1.

Table 1 Number of papers from each country. No Country Number of papers1 China 73 2 Indonesia 46 3 Japan 43 4 Republic of Korea 29 5 Germany 19 6 The Netherland 17 7 Malaysia 13 8 Austria 12 9 India 8

10 Others 42 The papers deal with

1. Condition monitoring and diagnosis for power equipments such as transformers, GIS, cables and electric machines

2. Condition monitoring and diagnosis in power plants

3. Failure phenomena based on electrical, mechanical, chemical and thermal causes

4. Degradation assessment for power equipment 5. Modern maintenance tools for effective

replacement 6. Advanced sensing techniques for condition

monitoring and diagnosis 7. Applications of artificial intelligence for data

mining and condition assessments 8. Asset management for power equipments 9. Strategic planning and management for condition

monitoring and diagnosis

The papers were presented in 21 oral sessions, 2 plenary sessions and 2 poster sessions. Keynote plenary invited lectures was given by Dr. Tatsuki Okamoto from CRIEPI Japan and Dr. Jitka Fuhr (AF Engineer and Consultants, AFEC) while plenary

Fig.1 Welcome reception.

Fig.2 Opening remarks by Prof. Suwarno. Fig.3 Invited plenary lecture by Dr. Okamoto.


invited speeches were given by Prof. Cengrong Li from North China Electric Power University, China, Ir. Yanuar Hakim MSc. from Indonesian Electric Power Company PT PLN Indonesia and Dr. Sang-Jin Kim from Korean Electric Power Company (KEPCO KDN) Korea.

CMD 2012 was attended by 239 participants.

Number of participants from each country is shown in table 2. Table 2 Number of participants from each country.

No Country No. of participants1 China 52 2 Indonesia 38 3 Japan 34 4 Republic of Korea 22 5 Germany 12 6 Austria 7 7 Malaysia 7 8 The Netherland 6 9 UK 6

10 Others 55

On September 25, the meeting of international advisory and corresponding members was held. Members attended the meeting were Dr. Okamoto, Prof. Cheng Rong Li, Prof. Ja-Yoon Koo, Dr. H. Orton, Dr. W. Koltunowicz, Prof. Shengtao Li,Prof. M. Hikita, Prof. E. Gockenbach, Prof. J. Smit, Prof. G. Chen, Prof. M. Muhr, Prof. Guan Zhicheng, Prof. A. Beroual, Prof. Dae Hee Park, Prof. Hyun Hoo Kim (replaced by Prof. Jun Hoo Lee), Prof. N. Hozumi and Prof. Suwarno, Dr. Resi Zarb (IEEE DEIS representative), Dr. Ahmed Abu Siada (from Curtin University Australia, presented a proposal to host CMD 2016 in Australia), Dr. Umar Khayam (General secretary), Prof. Dayu (Local arrangement committee) and Dr. Ariastina (secretariat).

Prof. Suwarno reported the progress of on-going CMD 2012 while Prof. Ja Yoon Ko, firmly explained the preparation for CMD 2014 which will be held in Jeju Island, Korea. After presentation from Dr. Ahmed Abu Siada from Curtin University and Prof. Shengtao Li from Xian Jiaotong University as candidate for hosting CMD 2016, finally the meeting decided Xian as the venue of CMD 2016.

On September 25 evening, a banquet dinner was

held at open stage with live Balinese dances and gamelan.

Fig.7 International corresponding members with dancers at banquet

Fig.6 Balinese dance at banquet.

Fig.5 View of poster session.

Fig.4 View of oral session.


The conference was officially closed on September 26 evening by Dr. Resi Zarb as the representative of IEEE DEIS. Post conference full day culture tour was arranged to famous places such as watching Barong Dance at Batubulan, visited the centre of Balinese gold and silver handicraft Celuk and Mas, where one can meet Balinese woodcarvers in every angle of the village. A lunch was served in Kintamani at 1,500 meters above sea level and participants enjoyed a breathtaking view of the Crater Lake Batur. Prof. Suwarno General Chairman of IEEE-CMD 2012 Institut Teknologi Bandung, Indonesia

Fig.9 All participants of CMD 2012.

Fig.8 Voluntary students, the green team with Prof. Suwarno, General Chairman.


International Conferences to be held in Asia ISH 2013 (International Symposium on High Voltage Engineering) Dates: August 25~30, 2013 Venue: Hanyang University (Seoul Campus) Chairman: Prof. Ja-Yoon KOO (Hanyang University.) Organizer: Organizing Committee ISH 2013 Co-organizer: KIEE, Hanyang University Official Website: www.ish2013.org

18th International Symposium on High Voltage Engineering (ISH 2013), which will take place in Hanyang University in Seoul, Republic of Korea from August 25 to 30, 2013.

The ISH 2013 promotes opportunities to be an effective rallying point for a broad range of constituencies, government officials, pioneering engineers, scientists, academics, researchers and many other professionals working in the pertinent fields to discuss the challenges of the day and to provide a platform for all to share cutting-edge technology and up-to-date knowledge and experience.

Seoul, the designated venue for the ISH 2013, is an ineffable world-class city where contemporary lifestyle meets long-standing history. Seoul offers the warmest hospitality, world-class services, high value-added accommodation and the state-of-the-art convention facilities. The ISH 2013 Organizing Committee is working around the clock to prepare for forward-looking programs and to ensure the effectual communications amongst interested parties from four corners of the world. Topics 1. Electromagnetic fields: computation, measurements,

environmental effects 2. Transient voltages: lightning, switching, repetitive

impulses, surge arrester, insulation coordination, overvoltage protection

3. High voltage and high current testing techniques 4. High voltage measuring techniques: dielectric

parameter, space charges, partial discharges 5. High voltage insulation materials and system: outdoor,

indoor, gas insulated, nano-dielectric, eco-friendly materials and applications

6. Monitoring and diagnostics: evaluation procedures, knowledge rules, data mining, smart sensors and applications

7. High voltage systems aspects: asset management, smart grids, live line working, maintenance and on-site repair

8. HVDC technologies and applications

Key dates: Abstract Submission: October 31, 2012 Notification of Acceptance: January 31, 2013 Full Paper Submission: April 15, 2013 Speaker Registration: May 31, 2013

Secretariat: Mr. Jin Woo Lee Email: [email protected] Phone: +82-2-6288-6327 Fax: +82-2-6288-6399 ICEE 2013 (International Conference on Electrical Engineering) Dates: July 14~18, 2013 Venue: Xiamen, China Organizer: CSEE Co-organizer: HKIE, IEEJ, KIEE Official Website: www.icee-con.org


Activities of Laboratories

Dielectrics Laboratory at Indian Institute of Technology Ropar

C. C. Reddy, J. S. Chahal, Ashish Gupta Department of Electrical Engineering

Indian Institute of Technology Ropar, Rupnagar, Punjab-140001

1. Introduction

The Indian Institute of Technology Ropar (IIT Ropar) is a new generation IIT, set up by the Ministry of Human Resource Development (MHRD),

Government of India, in 2008, to expand the reach and enhance the quality of technical education in India. Currently the institute operates from a transit campus, situated in Rupnagar town of Punjab state in northern India. It has been allotted a land of 500 hectors on the bank of river Sutlej in Rupnagar, where the permanent campus will be set up within a few years.

The institute has already initiated dielectric research laboratory as well as several central facilities (already established), that are useful for carrying research on dielectric materials in the transit campus. Also, plans to build a new generation high voltage laboratory are already floated for future new campus.

The objectives of current dielectrics laboratory are as follows:

1. Education: The laboratory is useful for under-graduate study in electric fields and space charges in dielectrics supplementing lecture courses.

2. Research: The laboratory contributes to various research fields including space charges and electric fields in dielectrics, measurement techniques, nano-composite materials for electrical insulation, development and applications of novel dielectric materials for high-speed circuits.

State-of-art space charge measuremen

no.19 november 2012 - einaeina.ws/no19/eina_no19.pdf · 2014. 4. 28. · energy, plasma, and...

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